Rainbow baby?

Emily • Our rainbow 🌈 baby has arrived! April 3, 2017.
So yesterday (11dpo) I was lightly cramping and some back aches. My cervix was medium and closed. Today the cramps are gone but my cervix is very high, very soft, and closed. 
Could I have implanted yesterday? I know it would be too early for a BFP (AF is due Wednesday) but this just feels different from last month when we had an early miscarriage. 
My temp is still high too. 
Any thoughts? Am I overthinking things?